<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片信息 -->
        <el-card>
            <!-- 数据搜索及数据添加 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容"  class="input-with-select" v-model="goodsListQuery.query"  clearable @clear="searchInfo">
                        <el-button slot="append" icon="el-icon-search" @click="searchInfo"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addNewGoods">添加商品</el-button>
                </el-col>
            </el-row>
            <!-- 商品信息表单区 -->
            <el-table :data="goodsList" border stripe>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column label="商品名称" prop='goods_name' width="700px"></el-table-column>
                <el-table-column label="商品价格(元)" prop='goods_price' width="110px"></el-table-column>
                <el-table-column label="商品重量" prop='goods_weight' width="80px"></el-table-column>
                <el-table-column label="创建时间" prop='add_time'>
                    <template slot-scope="scope">
                        {{scope.row.add_time|dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="120px">
                    <template slot-scope="scope">
                        <!-- 修改用户信息 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <!-- 删除用户 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeGoods(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页栏 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="goodsListQuery.pagenum" :page-sizes="[6,8, 10,12]" :page-size="goodsListQuery.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="goodstotal">
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  data() {
    return {
      // 商品列表页配置
      goodsListQuery: {
        query: '',
        pagenum: 1,
        pagesize: 8
      },
      // 商品列表
      goodsList: [],
      // 商品总条数
      goodstotal: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //   获取商品列表数据
    async getGoodsList() {
      const { data: res } = await this.$http.get('/goods', { params: this.goodsListQuery })
      if (res.meta.status !== 200) {
        return this.$message({
          showClose: true,
          message: '获取商品列表失败！',
          type: 'error'
        })
      }
      this.goodsList = res.data.goods
      this.goodstotal = res.data.total
    },
    // 每页多少条用户信息
    handleSizeChange(newPagesize) {
      this.goodsListQuery.pagesize = newPagesize
      this.getGoodsList()
    },
    // 当前在第几页
    handleCurrentChange(newPagenum) {
      this.goodsListQuery.pagenum = newPagenum
      this.getGoodsList()
    },
    // 搜索指定信息
    searchInfo() {
      this.getGoodsList()
    },
    // 删除商品
    async removeGoods(id) {
      const removeInfo = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (removeInfo !== 'confirm') {
        return this.$message({
          showClose: true,
          message: '已取消本次操作！',
          type: 'info'
        })
      }
      const { data: res } = await this.$http.delete('/goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message({
          showClose: true,
          message: '删除失败！',
          type: 'error'
        })
      }
      this.$message({
        showClose: true,
        message: '删除成功！',
        type: 'success'
      })
      this.getGoodsList()
    },
    // 添加新的商品
    addNewGoods() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
.el-table,.el-pagination{
    margin-top: 20px;
}
</style>
